Steam separator



Jan. v6. 1925.

` V. PETROVSKY STEAM sEPARAToR l Filed Oct. '7, 1921 invento/,- Washes/0V ,Det/o l/s/f by Qw 'MLS Ht arney.

Patented Ilan. 6, 1925.

UNTED STATES 1,522,205 ATENE v'QEFECE.

VYACHESLAV PETROVSKY, OF LYNN, MASSACHUSETTS, ASSIGNOR TO GENERAL ELEC- TRIO COMPANY, A CORPORATION OF NEW YO'RIK.

STEAM SEPARATOR.

Application filed ctober 7, 1921. Seriahle 506,143..

arators, of which the following is a speci-A fication.'

The present invention relates to steam l separators such as are used to separateA moisture or liquid particles from steam and has for its `objectvto provide an improved structureprand arrangement in a device ofv this character.

be novel and Ymy invention, attention is directedto the accompanyingdescription and the claims appended thereto. In the drawing, Fig. 1 is a vertical sec- 20 tional view of a separator embodying my invention; Fig. 2 is a top plan view thereof; Fig. 3 is a section taken on line 3 3, Fig. 1; Fig. 4 is a section taken on line t-h Fig. 1; and Figs. 5 and 6 are detail views.

Referring to the drawing, indicates the casing or outer wall of my separator, the same being provided with flanges 11 and 12 at its ends by means of which it may be bolted into a pipe line or conduit, 18 and 14 30 indicating adjacent ends of a pipe line or conduit. The flow through the separator is in the direction of the arrows and the casing is gradually reduced in diameter beginning at its entrance end to form a throat 15 beyond which it increases in diameter again producing thereby a Venturi tube shaped casing. In casing 10 are spiral or helicoidal guides or guide vanes 16 which extend from the entrance end of the casing toward its exit end. The guide vanes gradually increase in slope as they approach the exit forming finally grooves 17 which serve as troughs to catch the liquid separated from the steam. The guide vanes 'are of such depth that their edges terminate in substantially the same cylindrical surface as indicated at 18 from the entrance end of the separator to a point beyond throat 15 after which they gradually decrease in depth finally merging into the wall of the casing. For best results, the diameter of cylinder 18 should be small, so that little, if any, steam will pass straight through the separa-tor. The presence of opening 18 is not essential to my invention. Its purpose is to facilitate For a consideration of what I believe to.

the process of casting when, as in the present invention, the separator is made asa casting. It may vof coursebe made in ways otherv than by casting. Below vanes 16 the casing is enlarged as indicated at 19 and projecting'up-y wardly into the enlarged portion is a wall 2O which defines with the wall of the enlarged portion an annular liquid collecting chamber 21 from which leads drain pipe 22. Grooves 17 are shaped and directed to discharge liquid into chamber 21.

In operation steam entering the separator has its velocityincreased by reason-ofthe contraction or converging of the walls of the casing land at the same time. it is given a whirling motion by the spiral `vanes.` The V .effect is that `.the Iparticles., of liquidv are thrown out against the wall of the casing by centrifugal force where they are caught by the vanes and directed by grooves o-r troughs 17 into chamber 21. VThe steam which has been freed from moisture. passes outl by way of wall 20. As it leaves the vanes it will have at least a part of its velocity reconverted back into pressure due to the gradual diverging of the casing, and this reconversion of velocity into pressure will tend to dry the steam by raising its temperature and prevent the immediate for mation of further moisture. The separated liquid flows out of chamber 21 by way of passage 22. Y With my improved separator the pressure losses are reduced to a minimum since there are no sudden changes in direction of 90 steam ilow and pressure which is converted into velocity in the separator is again reconverted into pressure. Also the arrangement will most efficiently separate liquid from steam and such liquid will remain separated since the steam does not' again come into contact with liquid which has been already separated from the entering steam.

In accordance with the provisions of the patent statutes, I have described the prin- 100 ciple of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the apparatus shown is only illustrative and that 105 the invention may be carried out by other means.

What I claimas new and desire to secure by Letters Patentof the United States, is

1. A separator comprising a casing hav- 110 ing open entra-nce and exit ends and a. converging portion followed by a diverging` portion between said ends, spiral vanes which extend from the entrance end of the casing, within and along said converging and diverging portions, a wall in said casing which fo 1ms a chamber into which liquid is directed by said vanes, yand a. conduit for conveying liquid from said chamber.

2. A. separator comprising a easing having open entrance and exit ends and conu verging portion followed by a diverging -portion between said ends, spiral vanes which extend from the entrance end of the casing within and along said converging and diverging portions, means beyond said vanes in the direction of the exit end which forms an annular liquid receiving chamber, a-nd a conduit for conveying liquid from said chamber.

3. A separator comprising an elongated Venturi shaped conduit open at its two ends, helicoidal vanes which extend from the entrance end of said conduit to a. point beyond its throat, said vanes gradually increasing in slope, and means forming a liquid receiving chamber into which the vanes direct the separated liquid.

le fr separator comprising an elongated Venturi shaped conduit open at its two ends, helicoidal vanes which extend from the entrance end of said conduit to a point beyond its throat, said vanes gradually increasing in slope, and being shaped to form troughs at their lower ends, and means forming a liquid receiving chamber f r re ceiving liquid from said troughs.

5. A separator comprising a casing hav-- ing a converging portion followed by a diverging portion, and spiral vanesl which extend from the entrance end of the casing along its inner walls toward the exit end.

6. A separator comprising a casing having a converging portion followed by a diverging portion, spiral vanes which extend from the entrance end of the casing along its inner walls toward the exit end, and means located at approximately the throat of the casing which forms a chamber for the reception of liquid.

ln witness whereof, l have hereunto set my hand this 3rd day of October, 1921.

VYACHESLAV PETROVSKY. 

